How to check the next id in a mysql table? - Printable Version
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+--- Thread: How to check the next id in a mysql table? (/showthread.php?tid=316359)
How to check the next id in a mysql table? - Dokins - 06.02.2012
How could I.....
If I wanted to get the next id that's free in a table i.e
Someone purchases a vehicle from the dealer... How would I get the next MySQL ID in the table i.e
If the data stored before it was id 6....How could I do a query to know that the next id will be 7?
Re: How to check the next id in a mysql table? - Vince - 06.02.2012
Enable AUTO_INCREMENT for your index field. Also set it as primary key.
Re: How to check the next id in a mysql table? - Dokins - 06.02.2012
Yes it is already set, but what I mean is, Alright:
In my players table.... There is 3 vehicle owned slots... the id of the vehicle(Mysql id) is stored in one of these 3 slots that way there is a seperate table for vehicles....
When a player purchases a vehicle it will be added to the table, how do I get the ID of the newly inserted row?
Re: How to check the next id in a mysql table? - FuTuяe - 06.02.2012
You could use this I made awhile ago:
pawn Код:
stock gvi()
{
new str[128], id;
for(new i = 1; i < MAX_VEHICLES; i++)
{
format(str, sizeof(str),"SELECT * FROM `yourtable` WHERE `VehicleID` = '%i'", i);
mysql_query(str);
mysql_store_result();
if(mysql_num_rows() == 0) {
id = i;
break;
}
mysql_free_result();
}
return id;
}
Re: How to check the next id in a mysql table? - Dokins - 06.02.2012
Thanks!
Re: How to check the next id in a mysql table? - [Diablo] - 06.02.2012
if you are using BlueG's mysql plugin, check the mysql_insert_id function.
copied from wiki:
Код:
mysql_insert_id Retrieves the ID generated for an AUTO_INCREMENT column by the previous query (usually INSERT).
pawn Код:
mysql_query("INSERT INTO `players` (name,password) VALUES ('Ownage',MD5('mypass')");
printf("New player registered with ID %d",mysql_insert_id());
Re: How to check the next id in a mysql table? - Vince - 06.02.2012
Oh, in that case just use mysql_insert_id().